maximum reserved capacity (MRC)

at voltage level VHV and HV (very high voltage, high voltage), it is the maximum volume of electricity that delivery point can consume from the power grid. More precisely, it is the average value of the quarter-hourly active power negotiated in the contract for connection to the distribution system, or determined in the connection conditions for one delivery point. The MRC at the low voltage (LV) level is determined by the amperage value of the main circuit breaker in front of the electricity meter or the value of the MRC in kilowatts converted into electric current in amperes negotiated in the contract for connection to the distribution system, or determined in the connection conditions for one delivery point.
SOURCE: https://www.zsdis.sk